diff --git a/src/Model/ViewModel.php b/src/Model/ViewModel.php
index 806db9a0..2b8029e5 100644
--- a/src/Model/ViewModel.php
+++ b/src/Model/ViewModel.php
@@ -144,8 +144,7 @@ public function __unset($name)
             return null;
         }
 
-        $variables = $this->getVariables();
-        unset($variables[$name]);
+        unset($this->variables[$name]);
     }
 
     /**
diff --git a/src/Renderer/ConsoleRenderer.php b/src/Renderer/ConsoleRenderer.php
index 6d2683f5..d4070ef9 100644
--- a/src/Renderer/ConsoleRenderer.php
+++ b/src/Renderer/ConsoleRenderer.php
@@ -1,35 +1,18 @@
 <?php
 /**
- * Zend Framework
+ * Zend Framework (http://framework.zend.com/)
  *
- * LICENSE
- *
- * This source file is subject to the new BSD license that is bundled
- * with this package in the file LICENSE.txt.
- * It is also available through the world-wide-web at this URL:
- * http://framework.zend.com/license/new-bsd
- * If you did not receive a copy of the license and are unable to
- * obtain it through the world-wide-web, please send an email
- * to license@zend.com so we can send you a copy immediately.
- *
- * @category   Zend
- * @package    Zend_View
- * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
- * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ * @package   Zend_View
  */
 
-/**
- * @namespace
- */
 namespace Zend\View\Renderer;
 
-use ArrayAccess;
 use Zend\Filter\FilterChain;
-use Zend\View\Exception;
-use Zend\View\Model;
-use Zend\View\Renderer;
-use Zend\View\Resolver;
-use Zend\View\Variables;
+use Zend\View\Model\ModelInterface;
+use Zend\View\Resolver\ResolverInterface;
 
 /**
  * Abstract class for Zend_View to help enforce private constructs.
@@ -40,14 +23,11 @@
  *
  * @category   Zend
  * @package    Zend_View
- * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
- * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
-class ConsoleRenderer implements Renderer, TreeRendererInterface
+class ConsoleRenderer implements RendererInterface, TreeRendererInterface
 {
     /**
      * @var Zend\Filter\FilterChain
-     * @protected
      */
     protected $__filterChain;
 
@@ -66,7 +46,10 @@ public function __construct($config = array())
         $this->init();
     }
 
-    public function setResolver(Resolver $resolver) {}
+    public function setResolver(ResolverInterface $resolver)
+    {
+        return $this;
+    }
 
     /**
      * Return the template engine object
@@ -120,15 +103,15 @@ public function getFilterChain()
     /**
      * Recursively processes all ViewModels and returns output.
      *
-     * @param  string|Model            $model        A ViewModel instance.
-     * @param  null|array|Traversable  $values       Values to use when rendering. If none
+     * @param  string|ModelInterface   $model        A ViewModel instance.
+     * @param  null|array|\Traversable $values       Values to use when rendering. If none
      *                                               provided, uses those in the composed
      *                                               variables container.
      * @return string Console output.
      */
     public function render($model, $values = null)
     {
-        if (!$model instanceof Model) {
+        if (!$model instanceof ModelInterface) {
             return '';
         }
 
diff --git a/src/Renderer/RendererInterface.php b/src/Renderer/RendererInterface.php
index c97355b5..0cb38ec8 100644
--- a/src/Renderer/RendererInterface.php
+++ b/src/Renderer/RendererInterface.php
@@ -10,8 +10,8 @@
 
 namespace Zend\View\Renderer;
 
-use Zend\View\Model\ModelInterface as Model;
-use Zend\View\Resolver\ResolverInterface as Resolver;
+use Zend\View\Model\ModelInterface;
+use Zend\View\Resolver\ResolverInterface;
 
 /**
  * Interface class for Zend_View compatible template engine implementations
@@ -35,16 +35,16 @@ public function getEngine();
     /**
      * Set the resolver used to map a template name to a resource the renderer may consume.
      *
-     * @param  Resolver $resolver
+     * @param  ResolverInterface $resolver
      * @return RendererInterface
      */
-    public function setResolver(Resolver $resolver);
+    public function setResolver(ResolverInterface $resolver);
 
     /**
      * Processes a view script and returns the output.
      *
-     * @param  string|Model $name The script/resource process, or a view model
-     * @param  null|array|\ArrayAccess Values to use during rendering
+     * @param  string|ModelInterface   $nameOrModel The script/resource process, or a view model
+     * @param  null|array|\ArrayAccess $values      Values to use during rendering
      * @return string The script output.
      */
     public function render($nameOrModel, $values = null);
diff --git a/test/Model/ViewModelTest.php b/test/Model/ViewModelTest.php
index 151d4879..fa4f2859 100644
--- a/test/Model/ViewModelTest.php
+++ b/test/Model/ViewModelTest.php
@@ -82,6 +82,13 @@ public function testSetVariablesMergesWithPreviouslyStoredVariables()
         $this->assertEquals(array('foo' => 'bar', 'bar' => 'BAZBAT'), $model->getVariables());
     }
 
+    public function testCanUnsetVariable()
+    {
+        $model = new ViewModel(array('foo' => 'bar'));
+        $model->__unset('foo');
+        $this->assertEquals(array(), $model->getVariables());
+    }
+
     public function testCanSetOptionsSingly()
     {
         $model = new ViewModel(array(), array('foo' => 'bar'));